Mafungu matatu emagetsi (Frequency Period Wavelength Kumhanya kwemafungu) - Matambudziko neMagadzirirwo
1. Makorokori maviri ari pamusoro pemafungu . Ose anofamba achikwira nekudzika pamusoro pegungwa ka20 mumasekonzi mana. Kana daro remakorokori ese ari 100 cm uye pakati pawo, pane matangi maviri negomo rimwe chete, sarudza frequency yemafungu uye kumhanya kwemafungu.
Zvinozivikanwa:
Makoki ese ari maviri ari pamusoro pemafungu uye pakati pemakoki maviri, pane matangi maviri negomba rimwe chete (ona mufananidzo). Saka, pane mawavelength maviri pakati pemakoki maviri.
Hurefu hwemafungu (λ) = 100 cm / 2 = 50 cm.
Kuwanda (f) = 20/4 = 5 Hertz
Zvinodiwa: Kuwanda kwemafungu uye kumhanya kwemafungu
Solution:
Kuwanda kwemafungu (f) = 5 Hertz
Kumhanya kwemafungu (v) = f λ = (5)(50 cm) = 250 cm/s
2. Chitubu (slinky) chinozunguzwa kuti chibudise mafungu enguva refu, uko daro riri pakati pekumanikidzwa kwepedyo kaviri = 40 cm. Kana kumhanya kwemafungu kuri 20 ms -1 , sarudza kureba kwemafungu uye frequency yemafungu.
Zvinozivikanwa:
Nhambwe iri pakati pekumanikidzwa kwepedyo = daro riri pakati pekuwedzerwa kwepedyo = daro riri pakati pemapombi maviri ari pedyo = daro rimwe chete rewavelength
Hurefu hwemafungu (λ) = 40 cm = 0.4 m
Kureba kwemafungu (v) = 20 m/s
Zvinodiwa: Kureba kweWave (λ) uye frequency yemafungu (f)
Solution:
Hurefu hwemafungu (λ) = 0.4 m
Kakawanda (f) = v / λ = 20 / 0.4 = 50 Hertz
3. Pamusoro pegungwa, pane makorokori maviri akaparadzana kubva kune mumwe nemumwe kusvika pa60 cm. Makorokori ese ari maviri anofamba achikwira nekudzika ka20 mumasekonzi gumi. Kana rimwe riri pamusoro, rimwe riri pagomba remafungu. Pakati pemakorokori maviri, pane pamusoro pemafungu. Sarudza nguva yemafungu uye kumhanya kwemafungu.
Zvinozivikanwa:
Hurefu hwemafungu (λ) = 60 cm / 1.5 = 40 cm
Kuwanda (f) = 20/10 = 2 Hertz
Zvaidiwa: Nguva uye kumhanya kwemafungu.
Solution:
Nguva (T) = 1/f = 1/2 = masekondi 0.5
Kumhanya kwemafungu (v) = f λ = (2)(40) = 80 cm/s
